EP4412352A1 - Signalübertragungsverfahren und -vorrichtung sowie vorrichtung - Google Patents

Signalübertragungsverfahren und -vorrichtung sowie vorrichtung Download PDF

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Publication number
EP4412352A1
EP4412352A1 EP22874759.8A EP22874759A EP4412352A1 EP 4412352 A1 EP4412352 A1 EP 4412352A1 EP 22874759 A EP22874759 A EP 22874759A EP 4412352 A1 EP4412352 A1 EP 4412352A1
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EP
European Patent Office
Prior art keywords
constraint condition
performance
priority
communication device
communication
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EP22874759.8A
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English (en)
French (fr)
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EP4412352A4 (de
Inventor
Shengli DING
Dajie Jiang
Jianming Wu
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Publication of EP4412352A1 publication Critical patent/EP4412352A1/de
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
    • G01S7/006—Transmission of data between radar, sonar or lidar systems and remote stations using shared front-end circuitry, e.g. antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient

Definitions

  • This application belongs to the technical field of communications, and particularly, relates to a signal transmission method and apparatus, and a device.
  • Wireless communication and radar detection are the two most common and important applications in the modem radio frequency (Radio Frequency, RF) technology.
  • Communication is used for carrying out information transmission between devices, and radar is used for detecting and identifying targets.
  • radar is used for detecting and identifying targets.
  • the communication and the radar are independently developed and designed based on respective functions and frequency bands, without affecting each other.
  • the main way to design new waveforms for the joint communication and radar design is to use a joint waveform design of communication and radar functions.
  • how to ensure that the joint waveforms can meet different requirements is an urgent problem to be solved.
  • Embodiments of this application provide a signal transmission method and apparatus, and a device, which can solve the problem of designing combined waveforms for different requirements to ensure signal transmission.
  • a signal transmission method including:
  • a signal transmission apparatus including:
  • a communication device includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor.
  • the program or instruction when executed by the processor, implements the steps of the method according to the first aspect.
  • a communication device including a processor and a communication interface, where the processor is configured to obtain priority information and waveform related configuration information, the priority information being used for indicating the priority of a communication performance constraint condition of a signal and/or the priority of a radar performance constraint condition of the signal, and the waveform related configuration information being configuration information used for determining a value of a waveform parameter;
  • a readable storage medium stores a program or instruction.
  • the program or instruction when executed by a processor, implements the steps of the method according to the first aspect.
  • a chip includes a processor and a communication interface.
  • the communication interface is coupled with the processor, and the processor is configured to execute a program or instruction to implement the method according to the first aspect.
  • a computer program product is provided.
  • the computer program product is stored in a non-volatile storage medium.
  • the program product is executed by at least one processor to implement the steps of the method according to the first aspect.
  • a communication device configured to execute the method according to the first aspect.
  • the first communication device performs transmission of a signal whose waveform parameter is the target value, and/or sends the target value to a target communication device to guide the target communication device to perform transmission of a signal whose waveform parameter is the target value.
  • the target value is determined based on the obtained priority information (for indicating the priority of a communication performance constraint condition of a signal and/or the priority of a radar performance constraint condition of the signal) and waveform related configuration information (for determining a value of a waveform parameter), so that a waveform that performs transmission of the signal can achieve the JCR, and the working requirement of the signal can be met, that is, whether the communication performance is dominated or the radar performance is dominated can be determined.
  • first and second are used for distinguishing similar objects, rather than describing a specific sequence or order. It is to be understood that the terms used in such a way are exchangeable in a proper case, so that the embodiments of this application can be implemented in an order different from those shown or described herein.
  • the objects distinguished by “first” and “second” are usually of the same class, and the number of the objects is not limited, for example, the number of the first object may be one or multiple.
  • “and/or” indicates at least one of the connected objects, and the character “/” generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-Advanced
  • SC-FDMA single-carrier frequency-division Multiple Access
  • system and “network” in the embodiments of this application are often interchangeably used, and the described technology can be applied to the systems and radio technologies mentioned above, and can also be applied to other systems and radio technologies.
  • the following describes a new radio (New Radio, NR) system as an example, and the NR term is used in most of the following descriptions.
  • NR New Radio
  • these technologies can also be applied to applications other than the NR system, e.g., the 6 th generation (6 th Generation, 6G) communication system.
  • FIG. 1 is a block diagram of a wireless communication system that can be applied in an embodiment of this application.
  • the wireless communication system includes a terminal 11 and a network side device 12.
  • the terminal 11 may also be referred to as a terminal device or user equipment (User Equipment, UE).
  • UE User Equipment
  • the terminal 11 may be a mobile phone, a tablet personal computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or also known as a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-Mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or vehicle user equipment (Vehicle User Equipment, VUE), pedestrian user equipment (Pedestrian User Equipment, PUE), and other terminal-side devices.
  • the wearable devices include: smart watches, wristbands, headphones, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of this application.
  • the network side device 12 may be a base station or core network, and the base station may be referred to as a NodeB, an evolved NodeB, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a NodeB, an evolved NodeB (eNB), a home NodeB, a home evolved NodeB, a WLAN access point, a WiFi node, a transmitting receiving point (Transmitting Receiving Point, TRP), or some other appropriate terms in the art.
  • the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, a base station in an NR system is taken only as an example, but the specific type of the base station is not limited.
  • both the terminal 11 and the network side device 12 in FIG. 1 can be implemented as JCR communication devices, which can not only perform transmission of signals between devices, but also detect and identify targets.
  • a signal transmission method in an embodiment of this application includes: Step 201: A first communication device obtains priority information and waveform related configuration information, the priority information being used for indicating the priority of a communication performance constraint condition of a signal and/or the priority of a radar performance constraint condition of the signal, and the waveform related configuration information being configuration information used for determining a value of a waveform parameter.
  • the value of the waveform parameter can be determined cooperatively according to the priority information and the waveform related configuration information.
  • Step 202 The first communication device determines a target value of the waveform parameter according to the priority information and the waveform related configuration information.
  • the target value of the waveform parameter can be determined based on the priority information and waveform related configuration information obtained in step 201.
  • Step 203 The first communication device executes at least one of the following operations according to the target value:
  • the first communication device can directly use the target value of the waveform parameter determined in step 202 to complete the transmission of a signal, and/or can send the target value to a target communication device to guide the target communication device to perform transmission of a signal whose waveform parameter is the target value.
  • the first communication device performs transmission of a signal whose waveform parameter is the target value, and/or sends the target value to a target communication device to guide the target communication device to perform transmission of a signal whose waveform parameter is the target value.
  • the target value is determined based on the obtained priority information (for indicating the priority of a communication performance constraint condition of a signal and/or the priority of a radar performance constraint condition of the signal) and waveform related configuration information (for determining a value of a waveform parameter), so that a waveform that performs transmission of the signal can achieve the JCR, and the working requirement of the signal can be met, that is, whether the communication performance is dominated or the radar performance is dominated can be determined.
  • the first communication device may be a core network device, a base station or a terminal, and the target communication device may be a base station or a terminal.
  • the target communication device may be a base station; in a case that the first communication device is a base station, the target communication device may be a base station or a terminal; and in a case that the first communication device is a terminal, the target communication device may be a base station or a terminal.
  • the first communication device informs the target communication device (such as a terminal or a network device) of the target value of the waveform parameter, where in a case that the first communication device is a transmitting end of a signal, the target communication device can achieve more effective reception by obtaining the target value of the waveform parameter; and in a case that the first communication device is a receiving end of a signal, the target communication device sends a signal whose waveform parameter is the target value according to the obtained target value of the waveform parameter, so that the receiving performance of the first communication device can be ensured.
  • the target communication device such as a terminal or a network device
  • the first communication device obtaining priority information includes:
  • the priority information may be determined by the second communication device and informed to the first communication device, or may be independently determined by the first communication device.
  • the second communication device determines the priority information based on the performance requirement information capable of reflecting the requirement for the communication performance or radar performance of the signal.
  • the second communication device may be a third-party application, an application server, a core network device or a base station.
  • the second communication device may be a target communication device.
  • the first communication device obtaining performance requirement information includes: the first communication device receives performance requirement information from the second communication device.
  • the performance requirement information is sent by a third-party application, an application server, a core network device or a base station.
  • the performance requirement information can also indicate a target area detected by the radar or a designated target in the target area (that is, a radar detection object), and a communication obj ect.
  • the first communication device obtaining waveform related configuration information includes:
  • the waveform related configuration information may be determined by the second communication device and informed to the first communication device, or may be independently determined by the first communication device.
  • the association relationship may be established based on the capability information of a communication device (communication transmission capability and/or radar detection capability related information, for example, a maximum bandwidth of a transmitted signal, maximum power of the transmitted signal, and supported subcarrier spacing configuration).
  • the second communication device the same as the first communication device, can also determine the waveform related configuration information based on the performance requirement information reflecting the requirement for the communication performance or radar performance of the signal and the association relationship between the performance requirement information and the waveform related configuration information.
  • the manner of obtaining waveform related configuration information by the first communication device is as follows:
  • the core network device may only determine a part of the waveform related configuration information and configure this part of the waveform related configuration information to the first communication device, and the first communication device also needs to independently determine another part of the waveform related configuration information.
  • the waveform related configuration information includes at least one of the following information:
  • the maximum bandwidth B 0 will affect performance such as the channel capacity of communication transmission and the ranging resolution of radar detection;
  • the maximum duty cycle D 0 is a ratio of a duration of a transmitted pulse to a pulse period, which will affect performance such as the channel capacity of communication transmission and the blind range of radar detection;
  • the maximum multipath time delay ⁇ max is a maximum time delay among various paths of a communication receiver for receiving signals, which will affect the degree of inter-symbol interference;
  • the maximum radial velocity v cmax of the communication receiver is a Doppler effect of a moving communication object, affecting the subcarrier spacing between the received signals in the communication receiver, which will affect the orthogonality between subcarriers;
  • the maximum unambiguous range R u 0 is a maximum target range that radar detection can accurately distinguish a target range without ambiguity;
  • the maximum unambiguous velocity V u 0 is a maximum target velocity that radar detection can accurately distinguish a target velocity without ambiguity;
  • the first communication device determining the priority information according to the performance requirement information includes:
  • the priority information indicating that the priority of the communication performance constraint condition of the signal is higher than the priority of the radar performance constraint condition of the signal can be determined; and in a case that the radar performance required by the signal is higher than the communication performance, that is, the JCR waveform is dominated by the maximized radar detection performance supplemented by the communication transmission, it can be determined that the priority of the radar performance constraint condition is higher than the priority of the communication performance constraint condition.
  • the communication maximum Doppler shift f dc,max is much less than a subcarrier spacing ⁇ f , ⁇ f ⁇ 10 f dc ,max, where 10 is a preset subcarrier spacing setting parameter.
  • the length of a guard interval is not less than a maximum multipath time delay of a communication channel: T g ⁇ ⁇ max , where T g represents an orthogonal frequency division multiplex (Orthogonal frequency division multiplex, OFDM) symbol guard interval, and ⁇ max represents a maximum multipath time delay of a communication channel.
  • T g represents an orthogonal frequency division multiplex (Orthogonal frequency division multiplex, OFDM) symbol guard interval
  • ⁇ max represents a maximum multipath time delay of a communication channel.
  • the maximum Doppler shift f dr,max needs to be much less than a subcarrier spacing ⁇ f , ⁇ ⁇ ⁇ 10 f dr, max , where 10 is a preset subcarrier spacing setting parameter.
  • PRF Pulse Repetition Frequency
  • Table 1 Symbol Meaning Description T g OFDM symbol guard interval Constrained by a maximum multipath time delay of a communication channel ⁇ f subcarrier spacing Constrained by Doppler tolerance of a communication/radar receiver N c Number of subcarriers Determine a communication rate and a ranging resolution N S Number of OFDM symbols within a pulse Determine a communication rate and a radar blind range f r Pulse repetition frequency Determine an MUR, an MUV and a velocity measurement resolution
  • the waveform parameter includes at least one of the following parameters: an OFDM symbol guard interval, a subcarrier spacing, a number of subcarriers, a number of OFDM symbols within a pulse, and a pulse repetition frequency.
  • target values determined in step 202 are values corresponding to parameters T g , ⁇ f, N c , N s and f r .
  • the values of other parameters may be further derived from the determined target values of the parameters T g , ⁇ f, N c , N s and f r .
  • a communication-dominated JCR waveform performs transmission of a signal. Therefore, optionally, in a case that the priority information indicates that the priority of the communication performance constraint condition is higher than the priority of the radar performance constraint condition, the communication performance constraint condition includes at least one of the following conditions:
  • the communication performance constraint condition of the waveform parameter thereof includes one or more of the first constraint condition, the second constraint condition, the third constraint condition and the fourth constraint condition; and the radar performance constraint condition includes one or more of the fifth constraint condition, the sixth constraint condition, the seventh constraint condition and the eighth constraint condition.
  • f max in the second constraint condition takes a specific multiple of communication maximum Doppler shift f dc ,max , that is, ⁇ f ⁇ ⁇ f dc ,max , indicating that ⁇ f is much greater than f dc ,max , where ⁇ represents an adjustable subcarrier spacing setting parameter, for example, ⁇ is equal to 10.
  • the priority information indicates that the priorities of the constraint conditions are sequentially sorted from high to low as follows: the third constraint condition, the fourth constraint condition, the first constraint condition, the second constraint condition, the eighth constraint condition, the fifth constraint condition, the sixth constraint condition, and the seventh constraint condition.
  • the priority information indicates the priorities of the communication-dominated constraint conditions, as shown in Table 3: Table 3 Priority Constraint Description 1 Third constraint condition Maximize channel capacity 2 Fourth constraint condition 3 First constraint condition Reduce inter-symbol interference 4 Second constraint condition Maintain orthogonality between subcarriers 5 Eighth constraint condition Minimize a first blind area of radar ranging 6 Fifth constraint condition Meet MUR requirements 7 Sixth constraint condition Meet MUV requirements 8 Seventh constraint condition Maximally meet the fourth constraint condition where the smaller the value of the priority, the higher the priority. For example, the third constraint condition whose value of the priority is 1 is a constraint condition with the highest priority, and the seventh constraint condition whose value of the priority is 8 is a constraint condition with the lowest priority.
  • step 202 includes:
  • the first communication device will first determine a candidate value of the waveform parameter that can meet the communication performance constraint condition according to the obtained waveform related configuration information and priority information indicating that the priority of the communication performance constraint condition is higher than the priority of the radar performance constraint condition. Then, in a case that the candidate value can completely or maximally meet the radar performance constraint condition, the candidate value is the target value.
  • the candidate value based on the limitation of the communication performance constraint condition, there is a case that the candidate value cannot meet the radar performance constraint condition.
  • the candidate value may also be determined as the target value. Maximally meeting may also be understood as minimally deviating, that is, the candidate value has the minimum absolute difference from the reference value limited by the radar performance constraint condition compared to other values.
  • the first communication device updates the candidate value in a case that the radar performance constraint condition includes the fifth constraint condition and the sixth constraint condition and the candidate value does not meet the fifth constraint condition or the sixth constraint condition, until the candidate value meets the fifth constraint condition and the sixth constraint condition, and determines the candidate value meeting the fifth constraint condition and the sixth constraint condition as the target value of the waveform parameter.
  • the communication performance constraint condition includes at least one of the following conditions:
  • the communication performance constraint condition of the waveform parameter thereof includes one or more of the first constraint condition and the fourth constraint condition; and the radar performance constraint condition includes one or more of the second constraint condition, the third constraint condition, the seventh constraint condition and the eighth constraint condition.
  • f max in the second constraint condition takes a specific multiple of radar maximum Doppler shift f dr, max , that is, ⁇ f ⁇ ⁇ f dr ,max , indicating that ⁇ f is much greater than f dr, max , where ⁇ represents an adjustable subcarrier spacing setting parameter, for example, ⁇ is equal to 10.
  • the priority information indicates that the priorities of the constraint conditions are sequentially sorted from high to low as follows: the eighth constraint condition, the second constraint condition, the seventh constraint condition, the third constraint condition, the fourth constraint condition, and the first constraint condition.
  • the priority information indicates the priorities of the radar-dominated constraint conditions, as shown in Table 4: Table 4 Priority Constraint Description 1 Eighth constraint condition Minimize a first blind area of radar ranging 2 Second constraint condition Maintain orthogonality between subcarriers 3 Seventh constraint condition Minimize a resolution of radar ranging 4 Third constraint condition 5 Fourth constraint condition Maximize communication channel capacity 6 First constraint condition Reduce inter-symbol interference
  • the eighth constraint condition whose value of the priority is 1 is a constraint condition with the highest priority
  • the first constraint condition whose value of the priority is 6 is a constraint condition with the lowest priority.
  • step 202 includes:
  • the first communication device will firstly determine a candidate value of the waveform parameter that can meet the communication performance constraint condition and the communication performance constraint condition according to the obtained waveform related configuration information and priority information indicating that the priority of the radar performance constraint condition is higher than the priority of the communication performance constraint condition.
  • the candidate value is the target value; and in a case that the determined candidate value does not meet one or both of the fifth constraint condition and the sixth constraint condition, the candidate value needs to be updated until the candidate value can completely meet the fifth constraint condition and the sixth constraint condition, and the candidate value is used as the target value.
  • the candidate value can be updated in the same manner, for example, the candidate value can be updated by staggered pulse repetition frequencies. Therefore, optionally, the first communication device updating the candidate value includes:
  • the subcarrier spacing setting parameter is a parameter for determining a subcarrier spacing ⁇ f .
  • the candidate value of ⁇ f will change.
  • the first communication device adjusts the subcarrier spacing setting parameter at least once, at least two subcarrier spacings can be obtained based on the subcarrier spacing setting parameters before and after adjusting, and correspondingly, at least two corresponding pulse repetition frequencies can be determined. Then, the maximum unambiguous range and the maximum unambiguous velocity of the staggered pulse repetition frequency are determined according to the at least two pulse repetition frequencies, thus completing the update of the candidate value.
  • the candidate value can be updated based on the at least two pulse repetition frequencies; and when the determined maximum unambiguous range of the staggered pulse repetition frequency is less than R u 0 or the determined maximum unambiguous velocity of the staggered pulse repetition frequency is less than V u 0 , it can be known that this adjustment is not successful, and the subcarrier spacing setting parameter also needs to be readjusted, until the corresponding maximum unambiguous range of the staggered pulse repetition frequency after adjusting is greater than or equal to R u 0 and the corresponding maximum unambiguous velocity of the staggered pulse repetition frequency after adjusting is greater than or equal to V u 0 .
  • corresponding f r1 is obtained according to ⁇ f 1
  • corresponding f r2 is obtained according to ⁇ f 2
  • m and n are relatively prime
  • ⁇ f r is a greatest common divisor of f r1 and f r2
  • corresponding T r1 is obtained according to ⁇ f 1
  • corresponding T r2 is obtained according to ⁇ f 2
  • Pulse Repetition Interval PRI
  • staggered double frequencies are also applicable to the embodiments of this application, which will not be described here.
  • process of updating the candidate value can also be carried out by a genetic algorithm, which will not be described here.
  • Table 5 Symbol B 0 D 0 R u 0 V u 0 /v rmax /V cmax ⁇ R 0 R bz 0 ⁇ max f c Value 400 MHz 0.2 5 km 140 m/s 1 m 100 m 0.1 ⁇ s 3 GHz
  • N s f r ( T g + 1/ ⁇ f ) 0.2 is obtained according to the fourth constraint condition.
  • ⁇ ⁇ 10 ⁇ dc
  • Scenario 2 User equipment 2 (first communication device) receives performance requirement information from the corresponding base station (second communication device).
  • the performance requirement information indicates that the performance requirement of a signal is that the radar performance is higher than the communication performance, that is, the maximized radar detection performance is dominated supplemented by the communication transmission.
  • the user equipment 2 also receives waveform related configuration information configured through radio resource control (Radio Resource Control, RRC) from the corresponding base station.
  • RRC Radio Resource Control
  • the user equipment 2 can determine that the priority of the radar performance constraint condition is higher than the priority of the communication performance constraint condition according to the received performance requirement information (where the communication performance constraint condition includes the first constraint condition and the fourth constraint condition, and the radar performance constraint condition includes the second constraint condition, the third constraint condition, the seventh constraint condition and the eighth constraint condition), and can determine that the priorities of the constraint conditions are sequentially sorted from high to low as follows: the eighth constraint condition, the second constraint condition, the seventh constraint condition, the third constraint condition, the fourth constraint condition, and the first constraint condition.
  • the first priority of radar detection is a blind range.
  • the duty cycle needs to be maximized under the constraints of radar performance parameters.
  • the OFDM symbol guard interval needs to meet the first constraint condition.
  • the sizes of T s , 0.5 ⁇ 2 R bz 0 / c and 2 R bz 0 / c are compared:
  • the candidate value of each waveform parameter is the target value; and in a case that at least one of the fifth constraint condition and the sixth constraint condition is not met, the candidate value is updated (the specific updating manner is described above and will not be described here).
  • the content of the waveform related configuration information is also shown in Table 5.
  • T 2 R bz 0 / c .
  • N s 1
  • T g 0.
  • the method in the embodiments of this application can determine applicable target values of waveform parameters based on the priority requirements for communication performance and radar performance for signals transmitted through JCR waveforms, so as to complete the transmission of signals, thus balancing the dominant and auxiliary functions of signals.
  • an executive body of the signal transmission method provided in the embodiments of this application may be a signal transmission apparatus, or a control module for executing and loading the signal transmission method in the signal transmission apparatus.
  • the signal transmission apparatus executing and loading the signal transmission method is taken as an example to describe the signal transmission method provided in the embodiments of this application.
  • a signal transmission apparatus 300 in an embodiment of this application includes:
  • the obtaining module is further configured to:
  • the obtaining module is further configured to: receive performance requirement information from the second communication device.
  • the obtaining module is further configured to:
  • the communication performance constraint condition includes at least one of the following conditions:
  • the priority information indicates that the priorities of the constraint conditions are sequentially sorted from high to low as follows: the third constraint condition, the fourth constraint condition, the first constraint condition, the second constraint condition, the eighth constraint condition, the fifth constraint condition, the sixth constraint condition, and the seventh constraint condition.
  • the determining module includes:
  • the communication performance constraint condition includes at least one of the following conditions:
  • the priority information indicates that the priorities of the constraint conditions are sequentially sorted from high to low as follows: the eighth constraint condition, the second constraint condition, the seventh constraint condition, the third constraint condition, the fourth constraint condition, and the first constraint condition.
  • the determining module includes:
  • the determining module includes:
  • the obtaining module is further configured to:
  • the waveform related configuration information includes at least one of the following information:
  • the waveform parameter includes at least one of the following parameters: an OFDM symbol guard interval, a subcarrier spacing, a number of subcarriers, a number of OFDM symbols within a pulse, and a pulse repetition frequency.
  • the apparatus performs transmission of a signal whose waveform parameter is the target value, and/or sends the target value to a target communication device to guide the target communication device to perform transmission of a signal whose waveform parameter is the target value.
  • the target value is determined based on the obtained priority information (for indicating the priority of a communication performance constraint condition of a signal and/or the priority of a radar performance constraint condition of the signal) and waveform related configuration information (for determining a value of a waveform parameter), so that a waveform that performs transmission of the signal can achieve the JCR, and the working requirement of the signal can be met, that is, whether the communication performance is dominated or the radar performance is dominated can be determined.
  • priority information for indicating the priority of a communication performance constraint condition of a signal and/or the priority of a radar performance constraint condition of the signal
  • waveform related configuration information for determining a value of a waveform parameter
  • the signal transmission apparatus in this embodiment of this application may be an apparatus, an apparatus or an electronic device with an operating system, or a component, an integrated circuit or a chip in a terminal.
  • the apparatus or the electronic device may be a mobile terminal or a non-mobile terminal.
  • mobile terminals include but are not limited to the types of the terminal 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine, or a self-service machine, which is not specifically limited in this embodiment of this application.
  • the signal transmission apparatus provided in this embodiment of this application can implement the processes implemented by the first communication device in the method embodiment in FIG. 2 . To avoid repetition, details are not described here.
  • an embodiment of this application further provides a communication device, including a processor 401, a memory 402, and a program or instruction stored in the memory 402 and executable on the processor 401.
  • the program or the instruction when executed by the processor 401, implements the processes of the above signal transmission method embodiment and can achieve the same technical effects. To avoid repetition, details are not described here.
  • An embodiment of this application further provides a communication device, including a processor and a communication interface.
  • the processor is configured to obtain priority information and waveform related configuration information, the priority information being used for indicating the priority of a communication performance constraint condition of a signal and/or the priority of a radar performance constraint condition of the signal, and the waveform related configuration information being configuration information used for determining a value of a waveform parameter;
  • FIG. 5 is a schematic diagram of a hardware structure of a terminal as a first communication device for implementing each embodiment of this application.
  • a terminal 500 includes but is not limited to: at least some components such as a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, and a processor 510.
  • the terminal 500 may further include a power supply (such as a battery) for supplying power to the components.
  • the power supply may be logically connected to the processor 510 by a power management system, thereby implementing functions such as charging, discharging and power consumption management by the power management system.
  • the terminal structure shown in FIG. 5 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than those shown in figures, or some components may be combined, or different component layouts may be used. Details are not described here.
  • the input unit 504 may include a graphics processing unit (Graphics Processing Unit, GPU) 5041 and a microphone 5042.
  • the GPU 5041 processes the image data of a static picture or a video obtained by an image acquisition apparatus (for example, a camera) in a video acquisition mode or an image acquisition mode.
  • the display unit 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • the user input unit 507 includes a touch panel 5071 and another input device 5072.
  • the touch panel 5071 is also known as a touch screen.
  • the touch panel 5071 may include two parts: a touch detection apparatus and a touch controller.
  • the another input device 5072 may include, but is not limited to, a physical keyboard, a functional key (such as a volume control key or a switch key), a track ball, a mouse and a joystick, which are not described herein in detail.
  • the radio frequency unit 501 receives downlink data from a network side device, the downlink data is sent to the processor 510 for processing.
  • uplink data is sent to the network side device.
  • the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the memory 509 may be configured to store a software program or an instruction and various data.
  • the memory 509 may mainly include a program or instruction storage area and a data storage area, where the program or instruction storage area may store an operating system, an application program or an instruction required by at least one function (for example, a sound playback function and an image playback function), and the like.
  • the memory 509 may include a high-speed random access memory and may further include a non-volatile memory, where the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable ROM (Programmable ROM, PROM), an erasable PROM (Erasable PROM, EPROM), an electrically EPROM (Electrically EPROM, EEPROM), or a flash memory, such as at least one magnetic disk storage device, a flash memory device, or another non-volatile solid-state storage device.
  • ROM Read-Only Memory
  • PROM programmable ROM
  • PROM erasable PROM
  • EPROM electrically EPROM
  • flash memory such as at least one magnetic disk storage device, a flash memory device, or another non-volatile solid-state storage device.
  • the processor 510 may include one or more processing units.
  • the processor 510 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application program or instruction, and the like, and the modem processor mainly processes wireless communication, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 510.
  • the processor 510 is configured to obtain priority information and waveform related configuration information, the priority information being used for indicating the priority of a communication performance constraint condition of a signal and/or the priority of a radar performance constraint condition of the signal, and the waveform related configuration information being configuration information used for determining a value of a waveform parameter;
  • the terminal performs transmission of a signal whose waveform parameter is the target value, and/or sends the target value to a target communication device to guide the target communication device to perform transmission of a signal whose waveform parameter is the target value.
  • the target value is determined based on the obtained priority information (for indicating the priority of a communication performance constraint condition of a signal and/or the priority of a radar performance constraint condition of the signal) and waveform related configuration information (for determining a value of a waveform parameter), so that a waveform that performs transmission of the signal can achieve the JCR, and the working requirement of the signal can be met, that is, whether the communication performance is dominated or the radar performance is dominated can be determined.
  • priority information for indicating the priority of a communication performance constraint condition of a signal and/or the priority of a radar performance constraint condition of the signal
  • waveform related configuration information for determining a value of a waveform parameter
  • An embodiment of this application further provides a readable storage medium.
  • the readable storage medium stores a program or instruction.
  • the program or instruction when executed by a processor, implements the processes of the above signal transmission method embodiment and can achieve the same technical effects. To avoid repetition, details are not described here.
  • the processor is a processor in the terminal described in the above embodiment.
  • the readable storage medium may include a computer-readable storage medium, such as a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk, or an optical disc.
  • An embodiment of this application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled with the processor.
  • the processor is configured to execute a program or instruction to implement the processes of the above signal transmission method embodiment and can achieve the same technical effects. To avoid repetition, details are not described here.
  • the chip mentioned in this embodiment of this application may also be referred to as a system level chip, a system chip, a chip system, an on-chip system chip, or the like.
  • An embodiment of this application further provides a computer program product.
  • the computer program product is stored in a non-volatile storage medium.
  • the computer program product is executed by at least one processor to implement the processes of the above method embodiment and can achieve the same technical effects. To avoid repetition, details are not described here.
  • the methods in the above embodiments may be implemented by means of software and a necessary general hardware platform, and certainly, may also be implemented by hardware. However, in many cases, the former is the better implementation.
  • the technical solutions in this application essentially, or the part contributing to the prior art, may be presented in the form of a computer software product.
  • the computer software product is stored in a storage medium (for example, an ROM/RAM, a magnetic disk, or an optical disc) including several instructions to enable a terminal (which may be a mobile phone, a computer, a server, an air conditioner, a network device, or the like) to perform the methods described in the embodiments of this application.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radar Systems Or Details Thereof (AREA)
EP22874759.8A 2021-09-28 2022-09-22 Signalübertragungsverfahren und -vorrichtung sowie vorrichtung Pending EP4412352A4 (de)

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CN202111144149.3A CN115884420B (zh) 2021-09-28 2021-09-28 一种信号传输方法、装置及设备
PCT/CN2022/120533 WO2023051373A1 (zh) 2021-09-28 2022-09-22 一种信号传输方法、装置及设备

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WO2012037680A1 (en) * 2010-09-20 2012-03-29 Corporation De L'ecole Polytechnique De Montreal Radar system with integrated communication functionality
CN105137410B (zh) * 2015-07-24 2017-09-29 西安电子科技大学 基于ofdm的高分辨率雷达通信一体化的波形优化方法
US10598763B2 (en) * 2016-07-27 2020-03-24 Raytheon Company System and method for concurrent communication of different signal types by a radar
WO2020065483A2 (en) * 2018-09-26 2020-04-02 University Of Kansas Power-efficient formulation of tandem-hopped radar & communications
US11181630B2 (en) * 2019-04-19 2021-11-23 Massachusetts Institute Of Technology High-throughput wireless communications encoded using radar waveforms
US11178691B2 (en) * 2019-09-09 2021-11-16 Huawei Technologies Co., Ltd. Systems and methods for sensing in half duplex networks
CN111132335B (zh) * 2019-12-16 2022-04-05 南京航空航天大学 雷达通信一体化系统子载波聚类与功率联合分配方法
KR102321422B1 (ko) * 2020-01-29 2021-11-04 울산과학기술원 레이더-통신 결합 시스템의 신호 생성 방법
US11581936B2 (en) * 2021-03-03 2023-02-14 Samsung Electronics Co., Ltd. Method and apparatus for beam management in antenna array sharing radar and communication systems
US11910423B2 (en) * 2021-10-27 2024-02-20 Cisco Technology, Inc. Systems and methods for reducing false radar detection
US12339387B2 (en) * 2022-05-03 2025-06-24 Qualcomm Incorporated GI-FMCW radar reference signal design for joint communication-radar

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WO2023051373A1 (zh) 2023-04-06
CN115884420A (zh) 2023-03-31
CN115884420B (zh) 2025-10-10
US20240241216A1 (en) 2024-07-18

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